September weather forecast
Philipsburg, Sint Maarten

The coastal city of Philipsburg, in Sint Maarten, with a distant view of the mountains, and the Great Salt Pond
The coastal city of Philipsburg, in Sint Maarten, with a distant view of the mountains, and the Great Salt Pond

Weather in September

September, the first month of the autumn in Philipsburg, is still a tropical month, with an average temperature varying between 25°C (77°F) and 31°C (87.8°F).

Temperature

The warmest months are June through October, with an average high-temperature of 31°C (87.8°F).

Rainfall

The month with the most rainfall is September, when the rain falls for 19 days and typically aggregates up to 129mm (5.08") of precipitation.

Sea temperature

September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Philipsburg.
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:26. On the last day of September, in Philipsburg, sunrise is at 06:02 and sunset at 18:01 AST.

Sunshine

The months with the least sunshine are January, February, May through July, September through December, with an average of 8h of sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 12 in September interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What are the warmest months in Philipsburg?

June through October, with an average high-temperature of 31°C (87.8°F), are warmest months in Philipsburg, Sint Maarten.

What is the temperature in September in Philipsburg?

In Philipsburg, Sint Maarten, in September, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 25°C (77°F).

What is the rainiest month in Philipsburg?

September is the month with the most rainfall in Philipsburg, Sint Maarten. Rain falls for 19 days and accumulates 129mm (5.08") of precipitation.

How much does it rain in Philipsburg in September?

In Philipsburg, in September, it is raining for 19 days, with typically 129mm (5.08") of accumulated precipitation.

What months are the sea warmest in Philipsburg?

September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Philipsburg, Sint Maarten.

How warm is the water in September in Philipsburg?

In Philipsburg, in September, the average water temperature is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Philipsburg have in September?

In Philipsburg, Sint Maarten, the average day length in September is 12h and 14min.

When is the sunrise / sunset in September in Philipsburg?

In September, on the first day of the month, sunrise is at 05:57 and sunset at 18:26. On the last day of the month, in Philipsburg, sunrise is at 06:02 and sunset at 18:01 AST.

What are the months with the least sunshine in Philipsburg?

The months with the least sunshine in Philipsburg, Sint Maarten, are January, February, May through July, September through December, with an average of 8h of sunshine.

How many hours of sunshine does Philipsburg have in September?

In Philipsburg, Sint Maarten, the average sunshine duration in September is 8h.

When is the highest UV index in Philipsburg?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Philipsburg, Sint Maarten.

What is the UV index reading in September in Philipsburg?

The average daily maximum UV index in September in Philipsburg, Sint Maarten, is 12. A UV Index of 11, and more, symbolizes an ultimate hazard to health from exposure to Sun's UV rays.
Average low temperature
Average rainfall days
Average sunshine
Average UV index

Average temperature in September
Philipsburg, Sint Maarten

Average temperature in September - Philipsburg, Sint Maarten
  • Average high temperature in September: 31°C

The warmest months (with the highest average high temperature) are June, July, August, September and October (31°C).
The months with the lowest average high temperature are January, February, March and December (29°C).

  • Average low temperature in September: 25°C

The months with the highest average low temperature are June, July, August, September and October (25°C).
The coldest months (with the lowest average low temperature) are January, February, March and December (23°C).

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Average rainfall in September
Philipsburg, Sint Maarten

Average rainfall in September - Philipsburg, Sint Maarten
  • Average rainfall in September: 129mm

The wettest month (with the highest rainfall) is September (129mm).
The driest months (with the least rainfall) are February and March (43mm).

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Average rainfall days in September
Philipsburg, Sint Maarten

Average rainfall days in September - Philipsburg, Sint Maarten
  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is November (21 days).
The month with the least rainy days is April (12 days).

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Average sea temperature in September
Philipsburg, Sint Maarten

Average sea temperature in September - Philipsburg, Sint Maarten
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).

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Average daylight in September /
Average sunshine in September
Philipsburg, Sint Maarten

Average daylight in September / Average sunshine in September - Philipsburg, Sint Maarten
  • Average daylight in September: 12h and 14min

The month with the longest days is June (Average daylight: 13h and 11min).
The month with the shortest days is December (Average daylight: 11h and 4min).

  • Average sunshine in September: 8h

The months with the most sunshine are March, April and August (Average sunshine: 9h).
The months with the least sunshine are January, February, May, June, July, September, October, November and December (Average sunshine: 8h).

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Average UV index in September
Philipsburg, Sint Maarten

Average UV index in September - Philipsburg, Sint Maarten
  • Average UV index in September: 12

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).

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